Research Article
Jan 1970
Recent Developments in Grouting for Deep Mines
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 96, Issue 1
Abstract
Grout-impregnated columns can be used as a means of providing support for structures built over deep mined areas. The columns can be used to maximum advantage in areas of a mine which contain large open voids. The fly ash-cement grout mixes can be designed to approximately equal the strength of the remaining in-place coal pillars. The gravel used in the construction of the columns as well as the fly ash-cement grout used to impregnate the gravel column are injected through a 6-in. air-rotary hole which also serves as the access hole for the bore-hole camera. The horizontal bore-hole camera is a significant development in the tools used in the exploration of a deep mined area. This camera has overcome the major disadvantage of core borings in that areas up to 30 ft diameter can be explored with a bore-hole camera survey, conditions permitting. The vertical camera is also a useful tool in mine exploration and grouting because of the detailed information it can provide on the rock strata above the roof of the mine.
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Information
Published In
Journal of the Soil Mechanics and Foundations Division
Volume 96 • Issue 1 • January 1970
Pages: 251 - 261
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Jan 1970
Published online: Feb 12, 2021
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Alfred C. Ackenheil, M.ASCE
Pres., A. C. Ackenheil and Assoc., Inc., Consulting Engrs., Pittsburgh, Pa.
Murray T. Dougherty, AM.ASCE
Assoc., A. C. Ackenheil and Assoc., Inc., Consulting Engrs., Pittsburgh, Pa.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.